ASSUMING DIRECT CONTROL! On a more serious note, I would have to say Suicide Mission or Normandy Reborn would be the top two Every time I listen to those two songs my endorphins open up and I feel and unbelievable Euphoria.
Mass Effect 2 had a good soundtrack, but I found some of the tracks to be very generic and similar to each other. Mass Effect 1's synthy soundtrack was moody, distinctive and very fitting to the game. Speaking generally, parts of Mass Effect 2's soundtrack could have been interchanged with any Hollywood action movie's. Still good though. Anyway, those two you mentioned are excellent. I also really like Miranda's theme and New Worlds.
